Tyson Fury has vowed to return to boxing and 'prove the world wrong yet again.'

The former undisputed heavyweight World champion has endured problems outside the ring since shocking the world by defeating Wladimir Klitschko.

And just days before the Ukrainian makes his own return against Anthony Joshua at Wembley Stadium, Fury has sent out a warning to his rivals.

"I've made my mind up. I am definitely, definitely going to return and return to my best," Fury said on social media in a video. "I don't believe there's a heavyweight out there who can lace my boots up.

"I'm going to prove the world wrong yet again. They didn't give me a prayer last time. I will do it. 100 percent."

The 28-year-old also added his intention to lose 7.5 stone in his pursuit of reclaiming the World heavyweight crown.

"My life my choice. No matter the obstacles they might put in my way I will return to boxing and win back the world title," Fury wrote below his video. "For the first time in 16 months I'm certain about my future.

"I will lose the 7.5 stones & turn my life around. I've been through hell & back there is nothing I can't do."